Tenacious stem
#77
Senior Member

Joined: Jul 2008
Posts: 3,288
Likes: 4,243
From: The Le Grande HQ
Bikes: Gängl, Trek 938, Raleigh Professional, Paramount, Allez, Guerciotti, Specialized Stumpjumper, Trek 750, Miyata 1000 < Huffy
ConnoisseurEqua how'd it go?
#79
Senior Member


Joined: Jun 2006
Posts: 21,814
Likes: 3,720
It's an extra long stem. It goes all the way in. The nut must be 40cm long. Most of it comes out.
I've removed the wedge nut. No change.
I've removed the headset locknut. Removed all bearings for access. No change.
It could be as you said the wedge catching on something but can't see what.
I've removed the wedge nut. No change.
I've removed the headset locknut. Removed all bearings for access. No change.
It could be as you said the wedge catching on something but can't see what.
from time to time the expander distorts the steerer, that will result in the situation you describe. I would use Kroil.
in this case you might have to assemble a wood fixture to support the inverted frame/ fork by the crown on each side, whack the stem from the underside near the steerer.
when you are done, good chance the stem will show damage adjacent to the expander and be removed from service.
#80
Senior Member
Joined: Oct 2022
Posts: 1,378
Likes: 876
Bikes: a couple
With that long assed stem, why didn't anyone suggest taking the adjuster cone off of the top of that fork and drop the fork enough to inspect the steerer tube? I have a feeling that it's either mushroomed as suggested by Kurt or the steerer is split below the threads.






